Table 3.

Characteristics of nucleotide substitutions at Skts5

	5'UTR	Neutral	AA	3'UTR	Potential splice sites	SnoRNA	Total	Frequency of substitution/nt
C:G to T:A	27	203	41	140	13	10	434	0.00309
T:A to C:G	30	142	40	123	6	14	355	0.00253
C:G to A:T	7	26	19	52	0	6	110	0.00078
T:A to G:C	9	26	7	29	0	2	73	0.00052
C:G to G:C	8	19	18	25	1	2	73	0.00052
T:A to A:T	9	9	7	35	3	1	64	0.00046
total	90	425	132	404	23	35	1109	0.0079
Frequency of substitution/nt	0.00064	0.00303	0.00094	0.00288	0.00016	0.00025	0.0079

AA = amino acid substitution, UTR = untranslated region, nt = nucleotide